There are many factors that go into deciding which Chapter is the best option for yourself. If you are considering online schools as your primary choice you really need to calculate which Chapter will benefit you the most. With online schools it might very well be the current Chapter 30.
Here is something else to consider.
Based on how many months of entitlement you have remaining on your Chapter 30 benefits you are better off using these up and then switching to Chapter 33. This way you can receive all 36 months under Chapter 30 THEN the remaining 12 months under Chapter 33. You don’t have to switch to Chapter 33 immediately and since this an IRREVOCABLE change better to weigh all the factors first.